Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2015ChemistryChemistry in Everyday LifeActual

Sodium sulphite is used in preserving squashes and other mildly acidic foods due to

Options

  1. Apotassium salt has preservative action
  2. Bpotassium metabisulphite prevents oxidation
  3. Cpotassium metabisulphite is not influcenced by acid
  4. Dsulphur dioxide and sulphurous acid formed kill bacteria and germs

Correct answer

D. sulphur dioxide and sulphurous acid formed kill bacteria and germs

Step-by-step solution

aligned & K ₂ ~S ₂ O ₅ ~K ₂ SO ₃+ SO ₂ & SO ₂+ H ₂ O H ₂ SO ₃ aligned SO ₂ and sulphurous acid ( H ₂ SO ₃ ) kill the bacteria and prevent the decay of food.

Practice Chemistry in Everyday Life on Quantrex Academy →

More from Chemistry in Everyday Life

Which of the following are not used for the treatment of humans? 2026Identify the metal nanoparticle that acts as a highly effective bacterial disinfectant in the water purification process. 2026What is the correct chemical name of an insecticide DDT? 2026Identify the chemical used to slow down the browning action of cut fruit. 2026What is the role of aspirin? 2026Identify the structural formula of aspirin. 2026Clove is recommended for toothaches because 2026Identify the structure of paracetamol from the following. 2026 Full Chemistry in Everyday Life list All NEET PYQs